A rechargeable battery pack configured to prevent a frame from being damaged due to external impact forces while insulating a protection circuit module from short circuit is described. In an exemplary embodiment, the rechargeable battery pack may include a plurality of unit cells made up of a rechargeable battery connected to a frame which accommodates and supports the unit cells and having a loading portion sandwiched between the unit cells. The rechargeable battery pack may further comprise an electrically insulating holder connected to a loading portion, and a protection circuit module electrically connected to the unit cells and installed into the holder.